I think it would be fitting for him to retire now, personally. Ending a fight against his biggest rival so perfectly, after the years of disappointment and obsession over the previous decisions, and all the hard work he put in to get himself into a position to take on Pacquiao again.

I think it would be poetic for that punch to be the last he ever throws as a professional fighter.

no, because he should give Pacquiao the same opportunity PAcquiao has given him twice when he didn't have to. Marquez got his biggest pay day and biggest victory because Pacquiao gave him a 4th. Time to fight him now when you don't have the advantage of having nothing to lose and having your opponent more motivated for a change.

no, because he should give Pacquiao the same opportunity PAcquiao has given him twice when he didn't have to. Marquez got his biggest pay day and biggest victory because Pacquiao gave him a 4th. Time to fight him now when you don't have the advantage of having nothing to lose and having your opponent more motivated for a change.

I don't know if he should retire but Marquez should not fight Manny again. He had to beat Pacquaio 3 times to get one win and it had to happen via KO i.e. no judges.
Pacquaio vs Marquez IV was supposed to be final and decisive. And it cannot get any more decisive than the results Marquez delivered the IVth fight. The series is closed and we have a clear winner lets not taint it with a cooked Vth fight .

Excuses? Who do you think was more motivated for this fight, Pacquiao or Marquez? Pacquiao was more motivated than usual but you tell me who lived it and breathed it more. Everyone would agree...I'm stating a fact, I'm sorry if you don't like it because you interpret it as taking away from Marquez' KO but it's not meant to, it's simple fact